Of course, all technical safety measures are useless if it fails the easiest. Namely the secure password.
Here we recommend that you think up a whole sentence that you may associate with personal events. And you should then change this as far as the e.g. every 2nd letter is capitalized, or the letter E is replaced by a 3.
You could then use special characters such as / or% between the words.
Basically, the more complex a password is, the better.
If you do not want to think of anything, you can also create an Online Password Generator. But it is better that you think your own.